/**
 * Copyright 2010 The Apache Software Foundation
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.hadoop.hbase.regionserver.wal;

import java.io.IOException;

import org.apache.hadoop.hbase.util.Bytes;

public class InstrumentedSequenceFileLogWriter extends SequenceFileLogWriter {

  public InstrumentedSequenceFileLogWriter() {
    super(HLogKey.class);
  }
  
  public static boolean activateFailure = false;
  @Override
    public void append(HLog.Entry entry) throws IOException {
      super.append(entry);
      if (activateFailure && Bytes.equals(entry.getKey().getEncodedRegionName(), "break".getBytes())) {
        System.out.println(getClass().getName() + ": I will throw an exception now...");
        throw(new IOException("This exception is instrumented and should only be thrown for testing"));
      }
    }
}
